24 BULLETIN 193, UNITED STATES NATIONAL MUSEUM 



108. A revision of the Nearctic termites. By Nathan Banks. With notes on biology 



and geographic distribution by Thomas E. Snyder. Pp. i-viii, 1-228, 70 

 figs., 35 pis. Apr. 13, 1920. 



109. Contributions to a history of American State geological and natural history 



surveys. Edited and compiled by George P. Merrill. Pp. i-xviii, 1-549, 37 

 pis. Aug. 2, 1920. 



110. Osteology of the carnivorous Dinosauria in the United States National Museum, 



with special reference to the genera Antrodemus (Allosaurus) and Cerw 

 iosaiirus. By Charles Whitney Gilmore. Pp. i-xi, 1-159, 79 figs., 36 pis. Sept. 

 9, 1920. 



111. A monograph of the East American scaphopod mollusks. By John B. Hender- 



son, Pp. i-vi, 1-177, 20 pis. Oct. 6, 1920. 



112. Summary of the marine shellbearing mollusks of the northwest coast of America, 



from San Diego, California, to the Polar Sea, mostly contained in the collec- 

 tion of the United States National Museum, with illustrations of hitherto 

 unfigured species. By William Healey Dall. Pp. i-iii, 1-217, 22 pis. Feb. 

 24, 1921. 



113. Life histories of North American gulls and- terns: Order Longipennes. By 



Arthur Cleveland Bent. Pp. i-x, 1-345, 93 pis. Aug. 27, 1921. 



114. A revision of the king snakes: Genus Lampropeliis. By Frank N. Blanchard. 



Pp. i-vi, 1-260, 78 figs. Sept. 15, 1921. 



115. The fossil crinoid genus Dolatocrhius and its allies. By Frank Springer. Pp. 



i-v, 1-78, 6 figs., 16 pis. Apr. 6, 1921. 



116. The dipterous genus Dolichopus Latreille in North America. By M. C. Van 



Duzee, F. R. Cole, and J. M. Aldrich. Pp. i-vi, 1-304, 16 pis. Mar. 21, 1921. 



117. The distribution of bird life in the Urubamba Valley of Peru. A report on the 



birds collected by the Yale University-National Geographic Society's Expedi- 

 tions. By Frank M. Chapman. Pp. 1-138, 3 figs., 9 pis. June 29, 1921. 



118. Handbook and descriptive catalogue of the collections of gems and precious 



stones in the United States National Museum. By George P. Merrill, assisted 

 by Margaret W. Moodey and Edgar T. Wherry. Pp. i-viii, 1-225, 26 figs., 

 14 pis. Apr. 26, 1922. 



119. Catalogue of the mechanical engineering collection in the United States National 



Museum. Motors, locomotives, and self-propelled vehicles. Edited and com- 

 piled by Carl W. Mitraan. Pp. 1-118, 59 figs., 2 pis. Feb. 3, 1922. 



120. The opalinid ciliate infusorians. By Maynard M. Metcalf. Pp. i-vii, 1-484, 



258 figs. June 9, 1923. 



121. Life histories of North American petrels and pelicans and their allies: Order 



Tubinares and order Steganopodes. By Arthur Cleveland Bent. Pp. i-xii, 

 1-343, 69 pis. Oct. 19, 1922. 



122. A monograph of the American shipworras. By Paul Bartsch. Pp. i-iii, 1-51, 



1 fig., 37 pis. Aug. 4, 1922. 



123. Revision of the North American moths of the subfamily Eucosminae of the 



family Olethreutidae. By Carl Heinrich. Pp. i-iv, 1-298, 1 fig, 59 pis. Apr. 

 12, 1923. 



124. The type species of the genera of Chalcidoidea or chalcid-flies. By A. B. 



Gahan and Margaret M. Fagan. Pp. i-iii, 1-173. Apr. 6, 1923. 



125. North American Later Tertiary and Quaternary Bryozoa. By Ferdinand Canu 



and Ray S. Bassler. Pp. i-vii, 1-302, 38 figs., 47 pis. July 16, 1923. 



126. Life histories of North American wild fowl: Order Anseres (Part). By Arthur 



Cleveland Bent. Pp. i-ix, 1-250, 46 pis. May 25, 1923. 



127. Catalogue of the watercraft collection in the United States National Museum. 



Compiled and edited by Carl W. Mitman. Pp. i-v, 1-298, 96 figs., 1 pi. July 

 17, 1923. 



128. List of North American Recent mammals, 1923. By Gerrit S. Miller, Jr. Pp. 



i-xvi, 1-673. Apr. 29, 1924. 



129. The spider crabs of America. By Mary J. Rathbun. Pp. i-xx, 1-613, 153 figs., 



283 pis. June 19, 1925. 



